Bulg-ascii – Wavecom W74PC V8.7.0 User Manual

Page 145

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WAVECOM Decoder W74PC, W-PCI/e, W-CODE, W-CLOUD Manual V8.7.0

Transmission Modes

135

Parameter

Value

Frequency range

HF

Operation modes

Baudot, ASCII

Modulation

VFT FSK

Symbol rate

45.45, 50, 75, 100, 103.7 Bd, variable 30-110 Bd

Pilot Tone

560 Hz

Receiver settings

DATA, CW, LSB or USB

Input format(s)

AF, IF

Theoretically the system may handle channel dropouts of up to 3 seconds before errors occur. An un-
modulated pilot tone is transmitted at 560 Hz.

Tune to the “Pilot Tone”.

Center (Hz)

Space (Hz)

Mark (Hz)

Pilot Tone

560

CH1

850

765

935

CH2

1190

1105

1275

CH3

1530

1445

1615

CH4

1870

1785

1955

CH5

2210

2125

2295

CH6

2550

2465

2635

CH7

2890

2805

2975

 Channel spacing: 340 Hz

 Shift: 170 Hz

 Channels are delayed by a multiple of 1.024 seconds

 Symbol rate: 45-100 Baud

 Modes: Baudot, ASCII, and some FEC modes

Use the alphabet option to select the correct protocol and alphabet.

BULG-ASCII

For BULG-ASCII the standard baud rates 110 to 600 Bd may be directly selected. Other baud rates up to
1200 Baud may be selected using the variable baud rate option.

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